Across
- 4. An oyster is a bivalve mollusk whose shell is made up of two halves connected by a hinge. The shell can open to allow water in and close to protect the oyster’s soft body. Here’s what’s inside an oyster’s shell.
- 6. Feeders pump water through their bodies, filtering out algae and bacteria to eat. In the process, they remove pollution from the water
- 8. A threat to the environment
- 10. Harm,destroyed
- 11. Hard outer covering made of the mineral calcium carbonate that protects the oyster
- 16. Holds two halves of the oyster’s shell together
- 17. Below the water
- 21. I tool that measure things
- 22. Digests algae caught in the gills
- 24. Species Vital to their ecosystem
- 25. Skin like covering that protects the oysters organs
Down
- 1. Palp sorts and transfers food from the gills to the digestive tract
- 2. To lift up to or to elevate
- 3. blocking waves that can wash away sand and soil. Oysters also help keep harbors clean
- 5. Surges which occur when rising water is pushed onto land, causing flooding. The reefs help reduce erosion by blocking waves that can wash away sand and soil
- 7. Oyster reefs provide homes for other creatures, protect coastlines, and keep waters clean.
- 9. Harvesting until the animal is not there anymore
- 12. The tiny, immature oyster larvae have shells smaller than the period at the end of this sentence.
- 13. Oysters are a keystone species. That means they’re vital to their ecosystem—a community of organisms interacting with their nonliving environment. Oyster reefs provide homes for other creatures, protect coastlines, and keep waters clean.
- 14. Muscle Opens and closes the shell
- 15. Thin and complex
- 18. Filter oxygen,algae,and particles from the water
- 19. Provide homes for other creatures, protects coastline and keeps water clean
- 20. Pumps the oysters blood
- 23. Loss Oyster population are going down
